GNU bug report logs - #4511
23.1; flyspell-mode slow editing near end of big html file

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Message #20 received at 4511 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Kevin Ryde <user42 <at> zip.com.au>
To: 4511 <at> debbugs.gnu.org
Cc: Stefan Monnier <monnier <at> IRO.UMontreal.CA>
Subject: Re: bug#4511: 23.1; flyspell-mode slow editing near end of big html file
Date: Wed, 23 Sep 2009 10:56:07 +1000

Stefan Monnier <monnier <at> IRO.UMontreal.CA> writes:
>
> You need to pass it a `limit' argument.

I thought about that a bit.  The limit would be the immediately
preceding "<", ">", or "\n", since whichever of them is hit first
answers whether you're in a tag or not.

There'd be no need for a separate limit calculation if a regexp could be
cooked up to stop on the first of those three.  I suppose it'd be along
the lines of (untested) ...

     (and (looking-back "\\([<>\n]\\)[^<>\n]*?")
          (equal "<" (match-string 1)))

but `skip-chars-backward' seems clearer to me, and might be a couple of
nanoseconds quicker too in fact.

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